It really only targets a handful of characters like Moses, Captain, Strong Angel, King of Tyrus. You could put in HoH if these FBN guys really messed up your strategy. For most decks, it isn't worth the artifact spot. I love playing with Covenant with Death, and that takes care of much more than FBN. Confusion of Mind and Golden Calf are also options too, depending on what you have and want to defend against.
